2000 Chevrolet Silverado 1500 5.3L MIL Lamp onVIN: 1GCEK19T1YThank you all for your help. It turns out both knock sensors (after market) were no good. I had the same issue with a Toyota. I will be getting factory electrical parts from now on. The issue with filling the truck with fuel and setting the codes is beyond me.... Trouble codes: P0327 (Bank 1 knock sensor), P0332 (Bank 2 knock sensor).